Overview
AASHTO 93 Pavement Design (“we”, “us”, or “our”) is a pavement engineering calculator provided by the site owner of aashto93.ca. This Privacy Policy explains how we collect, use, and protect information when you use our website and services.
Information we collect
- Account information: When you create an optional account, we collect your email address and authentication identifiers through our managed authentication provider. We do not store passwords directly.
- License information: We keep a record of whether your account has an active license so you can unlock paid features.
- Payment information: Payments are processed by Stripe. We do not see or store full payment card numbers.
- Calculator usage: Engineering inputs you enter are processed in your browser and are not stored on our servers.
- Technical data: Standard server logs and cookies required to keep you signed in and complete checkout.
How we use your information
- To provide and maintain the calculator and optional paid features.
- To authenticate you and manage your account.
- To process license payments and confirm entitlements.
- To respond to support requests and security inquiries.
- To improve the app and diagnose technical issues.
How we share information
We do not sell your personal information. We share data only with service providers (subprocessors) needed to operate the app:
- Lovable Cloud — hosting, database, authentication, and serverless functions.
- Stripe — payment processing.
- Google — optional sign-in provider.
Cookies
We use the minimum cookies required for authentication and checkout. We do not use third-party advertising or tracking cookies.
Data retention
Account and license records are kept while your account is active. You may request deletion of your account and associated data by contacting the site owner.
Your rights
Depending on your location, you may have rights to access, correct, or delete your personal information. To exercise these rights, contact the site owner using the information below.
Security
We use HTTPS, row-level security on the database, server-only secrets, and other platform security controls provided by Lovable Cloud. No security measure is perfect; you are responsible for keeping your account credentials secure.
Changes to this policy
We may update this Privacy Policy from time to time. The updated policy will be posted on this page with a revised effective date.
Contact us
If you have questions about this Privacy Policy or want to exercise your data rights, please contact the site owner at the email address associated with the aashto93.ca domain.